Auto stereo installation device



FIG. 1 is a perspective view of an auto stereo installation device, showing my design;

FIG. 2 is a front elevation view of FIG. 1;

FIG. 3 is a rear elevation view of FIG. 1;

FIG. 4 is a right side elevation view of FIG. 1;

FIG. 5 is a left side elevation view of FIG. 1;

FIG. 6 is a top plan view of FIG. 1; and,

FIG. 7 is a bottom plan view of FIG. 1.

The broken lines shown in all views illustrate mounting features which form no part of the claimed design. 

The ornamental design for an auto stereo installation device, as shown and described. 